TY - JOUR T1 - Prediction of Stamp Impression Age Based on Hyperspectral Imaging Technology and Machine Learning JO - Journal of the Brazilian Chemical Society A1 - Gao, Ziwei A1 - Li, Xinchen A1 - Zhang, Jianqiang A1 - Li, Fan A1 - Lu, Xiaoquan A1 - Niu, Yukun A1 - Ye, Ziyan A1 - Cheng, Fanfan A1 - Wang, Xiaoyan SN - 0103-5053 UL - 10.21577/0103-5053.20260082 VL - 37 Y1 - 2026 PB - Brasil ER -